DE135422C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The subject of the invention Schachtverschlufs for elevators is one of those known types in which the elevator platform can only be set in motion when the shaft door is completely closed and the opening of this door is prevented while the stage is moving.

Fig. Ι shows a longitudinal section through the device with the shaft door closed.

Fig. 2 the same with the door open.

Fig. 3 shows a side view,

4 shows a diagram of the locking bar.

Fig. 5 shows the adjusting device with the securing piece.

A designates the elevator platform that moves up and down in shaft B. The shaft has a door opening 2 for the passage to the elevator platform.

This opening 2 is closed by a door 3 under normal conditions. The latter is a sliding door in the illustration and can be opened and closed by means of pre-air or other automatically acting means. A strip 4 is attached to the door 3, which protrudes on one side, here drawn on the left. This bar 4 is attached at a suitable height and is used to carry the locking bar 5. This is held by guide eyes 6 which are attached to the bar 4 with their lower tabs. The locking bar has a stepped surface 7 at one end, the left end in the drawing, and a stop 8 at one end of the surface 7. The free end of a spring pawl 9 rests under normal conditions against the surface 7 and against the outer surface of the stop 8 The spring pawl is designed as a leaf spring and is fastened with its lower end in the shaft B at or near the floor level.

When the free end of the spring pawl 9 rests against the surface 7, the door 3 not be opened, because if the door should be pushed to the left, it lies down the stop 8 against the spring pawl.

The locking bar 5 has an abutting end at its outer left end and against the surface 7 an approach 10, which with appropriate rotation of the locking bar, the upper free Push the end of the spring pawl towards the center of the shaft and make sure it touches the Approach 8 brings so that the door 3 can be pushed open. The elevator attendant can do the latter Do this in the manner explained later only when the elevator and the elevator platform are at a standstill has arrived at floor level across from an entrance 2.

Has the elevator platform which can be powered by any means an adjusting device 11 by which the elevator is set in and out of gear. This adjusting device consists of a lever that sits on the adjusting shaft 12 and accordingly regulates the operation. This adjusting device has a handle 13; if the latter in vertical Location is so is in the usual way

Claims (2)

the elevator disengaged, so that the elevator platform stands still. With the adjusting device 11 is now a Fuse 14 connected, which in a suitable manner with its lower end the actuating shaft 12 is attached so that it moves with the actuating device. The locking piece 14 is on the outside of the elevator platform, while the actuating device lies on the inside of the same. The securing piece 14 has a lengthwise running Führnuth 1 5 and side cheeks 16; latter serve as stops in the manner described later. ^{The locking bar 5 has a handle 16 1} at the end opposite the extension 10, by means of which the bar can be easily rotated; it normally assumes the position that the handle 16 ¹ rests against a shoulder 17 on the door and is in this position by the spiral spring 18, which is pushed over the rod 5 and is connected on the one hand to the rod and on the other hand to the bar 4, held. If the handle 16 ^{1 is} rotated downwards, the projection ι ο presses against the spring pawl g; If the handle is left free, the spring 18 rotates the rod 5 back again until the handle 16 ¹ rests against the shoulder 17. Assuming that the elevator platform A is opposite a corridor floor, the adjusting lever 11 assumes a vertical position and brings the guide groove 15 into the same position. If the rod 5 is now ^{rotated by the handle 16 1} , the projection 10 presses against the spring pawl 9, so that a pin of the same penetrates into the guide groove 15. Then the door 3 can be opened and allows traffic with the elevator platform. The bar 4 forms an important part of the security, because as soon as the door is opened, if the bar presses the upper end of the spring pawl off, the engagement of the pin 19 in the slot 1.5 is retained. As long as the pin 19 is in the groove, the adjusting device can not turned and as a result the elevator cannot be put into operation until the door is closed again the spring pin 19 has come out of the guide groove again. The left end of the bar 4 is beveled at 20 and ensures easy turning of the spring latch when you want to open the door. As soon as the spring pawl has passed the extension 10 when the door is opened, it is held taut by the strip 4 so that the door can be opened easily and the elevator attendant the. Can let go of the handle 16. ¹ without: the engagement of the pin 19 in the groove 15 is canceled; the rod is then immediately returned to its initial position by the spring 18. When the door 3 is closed, the pawl g jumps back into the vertical position by its own action and thereby pulls the pin 19 out of the groove 15 so that the elevator operator can set the elevator in motion by turning the control lever 11. The side cheeks 16 of the securing piece 14 prevent the spring pawl 9 from being pressed to release the door, except if the adjusting device 12 is in the vertical position, which the latter it assumes when the Elevator stands still. That is, when the adjusting device is rotated to the left or to the right is used to put the elevator into operation, or when it is in any of these positions before the elevator is stopped, one of the side walls is in line with the Pin 19 and prevents the movement of this pin and thereby that of the spring pawl, if any attempt should be made to open the door. As soon as the elevator platform holds, the groove 15 lies in the body 14 in such a way that the pin 19 enters it can. Some. Improperly kept elevators tend to dance, i. H. one Make slight upward and downward movement after and before they are stopped they are put into action again. By the Nuth 1 5 through the entire length of the locking piece 14, such dancing of the elevator can take place without the Safety device is affected. Godfather nt-A ν Proverbs: ι. A shaft lock for elevators with a locked door while the elevator is moving and locked control with the door open, characterized in that that a locking bar (5) is attached to a bar (4) attached to the sliding door is rotatably mounted, against the stop (7, 8) one in the shaft wall attached spring latch (9) that locks the shaft door in the closed position, and through the extension (10) of the locking rod (5) when rotating the latter or through the door strip (4) pressed with its locking pin (ig) into a vertical one Guide groove (15) of a securing piece (14) coupled to the adjusting lever (11) engages and thus a changeover of the adjusting lever with the door open (3) prevented. 2. An embodiment of the shaft closure for elevators according to: claim 1, characterized in that the securing piece (14) is provided with side cheeks (16) against which the locking pin (ig) of the spring pawl (9) hit and the back would prevent pressing the spring pawl if the adjusting lever (11) connected to the securing piece (14) should assume a rest position other than the vertical rest position, for the purpose of preventing the shaft door from being opened forcibly.
An embodiment of the shaft lock for lifts according to claim 1, characterized in that the strip (4) attached to the door (3) is provided with a bevel (20) on the side facing the attachment (10) of the locking bar and the locking bar (5 ) is self-closing by means of the spring (i8), for the purpose of making it easier to open the door (3) when the elevator platform is at a standstill. 1 sheet of drawings.